我们可以施加一个压力将轴或杆件安装在平面内的承窝里——形成承受轴端载荷的“球窝接合”。但是,首先要估算轴的挠度和平面上支承点的应力。经验表明,用普通悬臂梁方程式分析球窝接合,计算轴的弯曲应力,不能永远具有足够的精确度。例如,其弯矩方程式表明最大弯矩——因而最大弯曲应力产生于轴和支承面相接处(见图1)。实际上最大弯矩出 We can exert a pressure to mount the shaft or rod in the in-plane socket - creating a “ball-and-socket joint” that withstands axial load. However, we first estimate the shaft deflection and the stress at the bearing point in the plane. Experience has shown that using conventional cantilever equations to analyze ball-and-socket joints and calculating the bending stress of the shaft can not always be of sufficient accuracy. For example, its bending moment equation shows the maximum bending moment - thus the maximum bending stress is generated at the joint of the shaft and the bearing surface (see Figure 1). In fact the maximum moment out